From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0826FC43460 for ; Thu, 15 Apr 2021 10:18:00 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id C84CF613B1 for ; Thu, 15 Apr 2021 10:17:59 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C84CF613B1 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=amd-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 682EC6EA26; Thu, 15 Apr 2021 10:17:48 +0000 (UTC) Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by gabe.freedesktop.org (Postfix) with ESMTPS id A73E56EA1C; Thu, 15 Apr 2021 10:17:46 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 41B3DACC4; Thu, 15 Apr 2021 10:17:45 +0000 (UTC) From: Thomas Zimmermann To: alexander.deucher@amd.com, christian.koenig@amd.com, airlied@linux.ie, daniel@ffwll.ch, bskeggs@redhat.com, ray.huang@amd.com, linux-graphics-maintainer@vmware.com, sroland@vmware.com, zackr@vmware.com, shashank.sharma@amd.com, sam@ravnborg.org, emil.velikov@collabora.com, Felix.Kuehling@amd.com, nirmoy.das@amd.com Subject: [PATCH v2 1/7] drm/ttm: Don't override vm_ops callbacks, if set Date: Thu, 15 Apr 2021 12:17:34 +0200 Message-Id: <20210415101740.21847-2-tzimmermann@suse.de> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210415101740.21847-1-tzimmermann@suse.de> References: <20210415101740.21847-1-tzimmermann@suse.de> MIME-Version: 1.0 X-BeenThere: amd-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: nouveau@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, Thomas Zimmermann Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" Drivers may want to set their own callbacks for a VM area. Only set TTM's callbacks if the vm_ops field is clear. Signed-off-by: Thomas Zimmermann --- drivers/gpu/drm/ttm/ttm_bo_vm.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/ttm/ttm_bo_vm.c b/drivers/gpu/drm/ttm/ttm_bo_vm.c index b31b18058965..bf4a213bc66c 100644 --- a/drivers/gpu/drm/ttm/ttm_bo_vm.c +++ b/drivers/gpu/drm/ttm/ttm_bo_vm.c @@ -534,7 +534,12 @@ static struct ttm_buffer_object *ttm_bo_vm_lookup(struct ttm_device *bdev, static void ttm_bo_mmap_vma_setup(struct ttm_buffer_object *bo, struct vm_area_struct *vma) { - vma->vm_ops = &ttm_bo_vm_ops; + /* + * Drivers may want to override the vm_ops field. Otherwise we + * use TTM's default callbacks. + */ + if (!vma->vm_ops) + vma->vm_ops = &ttm_bo_vm_ops; /* * Note: We're transferring the bo reference to -- 2.31.1 _______________________________________________ amd-gfx mailing list amd-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx